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Brand: C.oeft
OE numbers: 45RFE 545RFE，5170877AA
Product Name: Transmission Valve，Valve Block
Compatible model: for Dodge, Grand Cherokee, Ram Pickup
Product status: Remanufactured
Number of teeth on the product: /
Product weight: 1.00KG
Packaging size: 63×41×36cm
Product packaging: Neutral Package
Car series: American
Car type: For Dodge、Chrysler
As a key electronic control component for some 6AT/8AT transmissions under Chrysler (suitable for models such as Dodge Journey and Chrysler 300C), the 5170877AA solenoid valve undertakes the core task of "electrical signal-hydraulic action" conversion. It achieves three core functions through precise control, ensuring the shifting smoothness and transmission reliability of the gearbox:
1. Precise Electrical Signal Reception and Hydraulic Conversion
Adopting PWM (Pulse Width Modulation) control technology, it can real-time receive current signals (operating current range: 0.8-1.5A) sent by the Transmission Control Unit (TCU) and quickly convert electrical signals into mechanical movements of the valve core. By adjusting the valve core stroke (maximum stroke: 0.5mm), it precisely controls the on-off state and flow rate of hydraulic oil, realizing real-time driving of actuators such as clutches and brakes. This ensures that the response delay of shifting commands is ≤ 0.1 seconds, avoiding power interruption or shifting lag.
2. Dynamic Graded Oil Pressure Regulation
Targeting different shifting conditions (e.g., starting, rapid acceleration, high-speed cruising), it has a built-in multi-stage pressure regulation structure, enabling stepless oil pressure adjustment within the range of 0.3-2.5MPa. For instance, during low-speed 1-2 gear shifting, it outputs low oil pressure (0.3-0.8MPa) to buffer the clutch engagement impact; during rapid acceleration 3-4 gear shifting, it increases the oil pressure to 1.8-2.5MPa to enhance the rigidity of power transmission and prevent slipping. Meanwhile, it forms a closed-loop control by real-time feeding back oil pressure signals to the TCU, controlling the oil pressure fluctuation error within ±0.05MPa to ensure shifting accuracy.
1. In-Depth Adaptation to Original Vehicles with Strong Compatibility
As an original Chrysler-spec solenoid valve (part number: 5170877AA), it is fully compatible with the oil circuit interfaces (e.g., Chrysler 62TE, 845RE transmissions) and wiring harness plug specifications of transmissions for specific years/models. No modification to installation dimensions or adjustment of circuit parameters is required. After installation, it can directly achieve communication matching with the original vehicle's TCU without additional programming and calibration. The applicable models cover mainstream vehicles such as Dodge Journey (2011-2016 models), Chrysler 300C (2012-2018 models), and Jeep Compass (some 2014-2020 models), reducing adaptation costs and installation difficulty.
2. High-Durability Materials and Craftsmanship with Long Service Life
The valve core is made of high-strength stainless steel (model 304) and undergoes nitriding treatment, with a surface hardness of over HV1000. Its wear resistance is 60% higher than that of ordinary solenoid valves, capable of resisting wear caused by long-term hydraulic oil scouring. The coil uses high-temperature-resistant copper wires (temperature resistance grade: 180℃) and is wrapped with oil-resistant insulating materials to prevent short-circuit faults caused by oil penetration. Through 1 million cycles of action testing (simulating a 10-year/200,000-kilometer usage scenario), the failure rate is ≤ 0.5%, and the service life can reach more than 150,000 kilometers under normal use.
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